Sole laying press



July 28, 1931.

R. RUHR SOLE LAYING PRESS Filed Oct. 25, 1929 3 Sheets-Sheet l July 28, 1931. V R. RUHR I 6,

SOLE LAYING PRESS I Filed Oct. 25, 1929 3 Sheets-Sheet 3 Jrzvelzlor:

duct to the pressure-source.

Patented July 28, 1931 umremsrn'rss' PATENT. oFF

RICHARD RUHB, or orrENRAon-oN-THE-MAIN, GERMANY, ASSIGNOR roman-rink mscmnnmmnmx monnus A.-G., or FRANKFORT-ON-THE-MAIN, GERMANY soLE LAYING PRESS Application filed October 23, 1929, Serial No. 401,848, and in Germany June 7, 1927. r

The present invention relates to a multiple sole pressing and cementing machine utilizing a pressure medium for inflating pressure chambers coacting with hold-downs for pressing the cemented soles to the lasted shoes. More particularly my invention relates to such a machine wherein the pressure medium is introduced from a pressure source into pressure-chambers contacting with the soles to be operated upon, this medium being exhausted after the work is done.

An important feature of my invention resides in the combination with an endless carrier supporting a plurality of pressing devices, of means allowing a constant connection between the fixed source of pressure and the pressure chambers moving with the endless carrier. After the shoe is placed into the pressing device a valve is opened for the entrance of the pressure medium from the pressure source ginto the pressure chamber.

This valve remains open while the endless carrier moves along its path until the finished shoe is removed from the pressing device.

A further important feature of my invention resides in the arrangement of a hose arranged along and moving with the endless carrier and communicating on one side with every pressure chamber by separate valves and connected on the other side by a single One end of this duct moves with the hose whereas its other end is fastened at a fixed point to a pressure supplying pipe.

These and other features of my invention will become apparent from the following description of the preferred embodiment illustrated in the accompanying drawings, in which L Fig. 1 is a side elevation ofa sole press constructed in accordance with the invention;

Fig. 2 is a vertical cross-section on the line ab of Fig. 1;

Fig. 3 is a partial vertical cross-section on the line 0-01 of Fig. 1 on a greater scale;

Fig. 4 is a section on the line e-/ of Fig. 3 showing the cock-arrangement;

Fig. 5 is a front of a pressing device on a greater scale.

plan view of a part legs 3, 4 forming bearings for the bolts 5.

The bolts 5 connect the le s 3 of one container with the legs'4 of the ollowing container. On these bolts 5 are arranged the rotatable rollers 6 for the purpose described hereinafter. The linked containers thus form an endless chain. It is of course possible to use instead a link-chain and to attach thereto independent containers. The outer ends of the bolts'6 engage into and are carried by sprockct drums 7 and 8.

Every container 1 is provided with a housing 9 of a two-way cook 10. A bore 11 leads from the housing to a hose 12 which forms for itself an endless duct. A second bore 13 leads through the hose 14 into the air-pad 2 and a third bore 15 leads into the atmosphere.

One of the containers 1 has a further depend.

ing leg 16 forming a bearing for the kneemember 17, 17.- Owing to its weight the member-part 17 hangs always down during the movement of the endless carrier. This member has a bore 18 leading at one end into a circular channel 19 of the ring 20. The ring 20 is connected by the hose 21 with the endless hose 12 so as to freely rotate upon the part 17. The other end of the bore 18 is connected to the flexible duct 22 the lower end of which is fastened to the fixed duct 23 leading to the pressure-source. It is thus evident that the pressure-medium propagates from 1 its source or storage-tank throu h the duct 22, the member 17, 17 and the ose 21 into the endless hose 12 and fromhere through the cocks 10 into the pressure chambers formed by the containers 1 and their covers 2. When the cock is closed the entrance of the pressuremedium is shut-up and the outlet of the cham her into the atmosphere is opened. A lever 24 is fastened to the cook 10 so that it can be opened and closed by hand.

With the pressure-chamber cooperates the hold-down 25 pivoted at 26 to the extension 27 of the container 1. On'the guide 28 of the hold-down 25 is adjustably arranged a pad 29 adapted to be seated upon a shoe 30 placed upon the pressure-chamber. To the container 1 is pivoted on each side at 31 a bar 32 the upper end of which is connected by the pin 34 to the knee-lever 33 on its side pivoted at 35 to the hold-down 25. By turning the kneelever 33 the hold-down can be raised and lowered. In the raised position of the holddown the pivot 34 of the knee lever 33 lies to the left of the vertical line passing through the pivot 35 shown in Fig. 3. But if the holddown is moved against the shoe the bars 32 and the lever 33 swing to the right until they occupy the position shown in Fig. 3 of the drawings. According to this figure the lever 33 abuts against the nose 35 of the holddown and the pivot 34 is on the right of the lever 33. Thus the bars 32 and the lever 33 automatically lock the'hold-down in the 0perative position. The hold-down 25 is seated on the "shoe not only with the pad 29 but also avith the pressure-foot 36. This is slidable on the guide 37 of the hold-down 25;

The sprocket drum 7 is keyed to the shaft 38 journaled in the frame 40 and the drum 8 is keyed to the shaft 39 journaled in the frame 41. The rollers 6 of the pressing devices ride underneath the rails 49 and over rails 43, 44 in order to properly guide and support the pressing devices. Therails 43, 44 are fastened to the frames 45. The pressing device shown just above the shaft 38 in Fig. 1 is operated upon by the attendant. The upermost device is within easy reach of the operator. The devices on both sides of the uppermost one assume an inclined position and allow an unobstructed access to the shoe to be attended. The sprocket drums 7, 8 are continuously or intermittently rotated by any suitable means.

From the above description the operation of the machine will be apparent. The attendant stands in front of the machine and introduces the shoe into the uppermostpress- .ing device the cook 10 of which is at that the pads remain always fully inflated even i if there is any leakage, while hitherto in the case of leakage the shoes operated upon became spoiled.

What I claim is:

In a sole laying press, an endless carrier, a plurality ofair-pads on the carrier, two separable revoluble members supporting the endless carrier, separate shafts carrying the revoluble members, an air duct interconnecting the air pads and movable with the end- I less carrier, stationary air supplying means, a single air duct'aifording communication between the stationary air supplying means and the said interconnecting duct and comprising carrier, and means associated with every pad for controlling the passage from the interconnecting duet into the pad.

In testimony whereof I affix my signature.

RICHARD RUHR.

time open to the atmosphere. He then lowv ers the hold-down 25 on the shoe for a preparatory pressing of the cemented sole to the lasted shoe. The hold-down becomes locked automatically. Thereupon he turns the handle 24 so as to allow the pressure medium to enter the pressure pad 2. The pad 2 becomes thus inflated and remains inflated while the pressing device is travelling around until it returns to the startin oint where the compressed air is discharge fiom the pressing chamber by movin the handle 24 and the hold-down is unlocked by moving the lever The cemented shoe is removed from the pressing device and a new one is placed upon the pad 2. The pads 2 are durin their travel in constant communication wi the source of the pressure-medium. Due to this fact a part movable within the endless v 

